Sprinkler-head.



EPMNKLEEHEAD;

Application le July 2i), 3.9155.

e concern:

@eeuw J. LUBBOCK, e

@moed States, residing et Sen e county of San Francisco f ifornie., have invented new :improvements in Sprinkler luch the following is u specifica present invention relates to sprinkler eh as ere used in automatic sprinkler distribute the water from the the fystem in case e lire starts. rinlrler heads are provided with l ich melts et a comparatively low 1 tcnlperuture sind' the melting; or which rethe writer, which escapes under presmre, is distributed by thesprinkler.

The principal object et the' invention is to provide e spr'inl-derhead in which the rel inovel of? the device for restraining the veter will be effected with greater certainty then heretofore upon the fusing of the metal. regeln, very often by .ier the greater perl; 'the der is ceused hy the flow of water esprit out before the Slik i perts hereinafter more fully specified and perticulerly pointed out in the claims. "i accompanying' drawing, Figure 1- view oi ny improved sprinkler 2 is a longitudinal section of the El, el, end 5 ere detail views of ports thereof; Fig". 6 is a side view partly in .,fff "hd u section of u modified form or Spruur er ee. e erring to the drawing, l lndicates a pipe o" u sprinkler system. lnto said pipe is screwed', as shown' at 2, the lower tubular pert el my improved sprinkler head, the opening in which converges to the top, as shown. et 3, and terminates in e vulve seat 4l. @n seet is e thin disk 5 of non-corrodible instel, such es copper or German silver, and, securing said disk upon said seat, is e csp valve 6, having e flange 7 surrounding the sent and a central conical enlargement or boss 8 upon its upper surface. Upon the apex ol seid boss is vsupported a sectional strut t), comprising two strut sections 10, separated on a plane through the axis of the strut, said strut heving; et the top end bot- Letters Patent. llatented Nov. t6, llgl.,

serial m. eusse.

torn conical recesses 11 and 12. The apex of the conical enlargement 8 of the valve ts 'in the. lowerrecess 12, While in the upper recess 11 fits the conical lower end of a presser har 13. Seid strut sections are held together by a sectional plete le, formed of twc sections 15 of brass or similar metal united by intervening strips 16 of easily fusible solder. Said plate is formed with a central hole through which the strut passes, and the strips 16 extend on opposite sides of said hole. The plate rests upon flanges l'l carried by the strut sections.

The presser bar slides in guides '18 depending from s yoke 19 forming pert of the sprinkler head. When the parts are placed in working position, with the valve 6 on its sent e, and the strut -9 on the valve G, the presser har is lowered until its lower end en ters the conical recess 1l in the' top of the strut, and then a screw 2O is screwed into en upper threaded recess in the yoke,J its lower end beering'down upon the upper end of' the bei', until a considerable pressure has been imparted by said screw1 to seid loer and is borne by` the strut. When the desired pressure has been attained, e rivet 21 is driven through the yoke and through the screw 20. rl`l1e strut sections are thus sul4 jected to a central bursting strain, by reason of being compressed between the conical enlargementA ofthe valve and the conical lower 'end of the presser bar.

ln the event that u fire occurs mol becomes hot enough to melt the easy fusible solder 16, the plete sections then separate, and the strut sections also seperate, owing to the hursting'strein to which they are subjected. The pressure of the water then violently forces up the valve 6 and disk 5, and these parts are pushed to one side by the rush oli the water. '1

Around the lower part of the presser ber is secured e rubber valve 2Q., the lowersurface of which is conical and continuous with the conical lower end oi thepresser har, and above said valve lingers 23 extend radially from a plate 24 secured to the presser bar above said valve, said fingers forming a distributer` the water being forced against the under side'o said lingers and dellected thereby to a considerable distance from the sprinkler heed. The sides of the yoke would ordinarily prevent the water from being deiected to the part of the room behind said sides, and in order to prevent this occurring l lthe' strut sections.

27, to a side of the yoke, extends through slots 28 in the yoke and 29 in the'presser bar 13, and is formed at the other end with a hook 30. gaged byrany suitable implement having a longl handle, and the presser bar can there-v by be pressed down until the rubber valve closes against the seat 4 and etfectually shuts ofi the Water. It can either be held in such position by hand or can be tied or-othervvise fastened in place. a

ln the form of the invention shown in Fig. 6 the lever for closing ofi" the Water is omitted and in.such case the distributor is placed at the top of the yoke instead of on the presser bar. lllhe rivet is driven through the presser bar when the latter has been moved into proper position by a screw 3l screwed through the top ot the yoke.

l regard as novel and as part of my invention the arrangement whereby a bursting strain is applied to the center of the sectional strut. 'f

l am avvare that it has been proposed to separatestrut sections by means of the pressure from a spring `plate applied to said plate at. its center, but such pressure is only applied by the edge of the plate, and is not as effective as when applied, as in my invention. at all points of a conical surface. Furthermore l apply such pressure upon a conical surface bothat the top and bottom of the strut. vl/*hen pressure is applied at one end only of the strut, the friction of the other end against the supporting surfaceis so great to render it difiicult to separate T his objection isv overcome when the pressure is applied at both ends. Furthermore l hold the strut sections together by means of a plate consisting of sections held together by easily fusible metal along their edges, as contrasted "with prior devices in which the strut sections are held together by easily Jfusible solder applied to the broad surfaces of a band.` ln such case there is a very great probability of the parts of the retainer. 1which are held together by the-easily fusible solder, not separating when the solder is melted` on account' of the adhesion thereof caused by reason of corrosion of the surfaces, said surfaces being veryr considerable. By employing a plate, the comparatively thin or narrow edges ot which are held together .by easilyA fusible solder, the above danger of inoperativeness through corrosion is avoided. l believe l' am also the rst to vprovide an emergency stopper for automatic sprinklers which consists merely Said hook can readily be en? moda-iv of a hooked lever which can be engaged` b v a suitable implement having a long handle. Prior automatic sprinkler heads have not been provided with any device especially intended for the purpose of shutting oti the Water after the s rinkler head has performed its o'fiice. `onsequently, it has been necessary to provide special and somewhat complicated implements for shutting ofi' the Water. providing a hooked lever in the sprinkler head itself, it is not necessary to have any' special tool for shutting oil the Water, provided only that it has at one end means for engaging and pulling down the hooked lever. I also regard as new and patentable the twisted fingers of the distributer for rendering uniform the distribution of the water as well as the rubber conical valve beneath the distributer for shutting oil" the water.

l claim l l. A sprinkler head having a valve seat,a valve on said seat and having a conical enlargement on its upper surface, strutsec-l `tions forming a strut having conical recesses at the top and bottom, the plane of separation of said strut sections extending through theapices of said conical recesses, a plate having a hole through which said strut extends and comprising plate sections separated from one another on a plane extending through said hole, easily fusible solder connecting said plate sections, the conical enlargement engaging the recess in the bottom. a presser bar havingY a conical lower end engaging the recess in the top, Ymeans for liniitinial the upward movement of said bar.y and a distributor above the valve seat.

Q. A sprinkler head having a valve seat, a valve on said seat and having' a conical enlargement on its upper surface. strut sections forming a strut having conical recesses at the top and bottom, the plane of separaltion of said strut sections extending through the apices of said conical recesses. a plate having a hole through which said strut tends and comprising' plate sections separated from one another on a plane extending through said hole` easily, fusible solder connecting said plate sections. the conical enlargement engagingy the recess in the bottom. a presser bar havingn a conical lower end engaging! the recess in the topn a vertical guide for said bar` means for limitingthe upward movement of said bar. a rubber conical valve on the bar below the distributer. a distributer above the valve seat, and a lever pivoted at one end to the sprinkler' head and engaging the bar to press the valve down to its seat and having a hooked free end.

3. A sprinkler head having a valve seat, a valve on said seatvand having' a conical enlargement on its upper surface, strut sections forming a strut having conical recesses mamar:

a the ton and bottom, the plane of @paracion of said strut secions extending through the apices o'' saifl conical recesses, a plate having a hole rhrough which said strut eX- tenris and. comprising plate sections separated from one another on a plane extending rhroogh said hole, easily fusible Solder connecting said plebe sections, the conical enlargement engaging the recess in the bottom, a presser bar havingr a conical lower vend engaging the recess in the top, a vertical guide for said bar, means for limiting the upward rnoverrienll of said bar, a rubber conical valve on the bar below the distributer', a'distributer above she lower end of the presser bar having outwardly extending fingers, certain of said fingers being twisted, and a lever pivoted at one end to the sprinkler head andengiaging the bar to press the valve down bo its seat and having' a hooked free end.

In testimony whereof I have hereunto Set mv hand in the' presence of two subscribing witnesses.

OSWALD J. LUBBCK. Witnesses:

F. M. WRIGHT, D. B. RICHARDS. 

